tests/float: Use "not" instead of ~ to invert bool value.

Otherwise CPython gives a deprecation warning.

This test is not actually testing inversion of bools, rather that bit of
the test is used to compute the pass/fail result.

Signed-off-by: Damien George <damien@micropython.org>

tests/float/float2int_doubleprec_intbig.py

@@ -59,7 +59,7 @@ print("power of 10 test: %s" % (testpass and "passed" or "failed"))
 def fp2int_test(num, name, should_fail):
     try:
         x = int(num)
-        passed = ~should_fail
+        passed = not should_fail
     except:
         passed = should_fail
     print("%s: %s" % (name, passed and "passed" or "failed"))

tests/float/float2int_fp30_intbig.py

@@ -56,7 +56,7 @@ print("power of 10 test: %s" % (testpass and "passed" or "failed"))
 def fp2int_test(num, name, should_fail):
     try:
         x = int(num)
-        passed = ~should_fail
+        passed = not should_fail
     except:
         passed = should_fail
     print("%s: %s" % (name, passed and "passed" or "failed"))

tests/float/float2int_intbig.py

@@ -59,7 +59,7 @@ print("power of 10 test: %s" % (testpass and "passed" or "failed"))
 def fp2int_test(num, name, should_fail):
     try:
         x = int(num)
-        passed = ~should_fail
+        passed = not should_fail
     except:
         passed = should_fail
     print("%s: %s" % (name, passed and "passed" or "failed"))